Advantage BG Series, Инструкция по эксплуатации

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Glycol Chillers : BC Series with MG Control Instrument
Page: 27
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
bypass the process and return directly to the chiller. This keeps the total
flow above the cutoff point. The illustration below show a typical bypass
loop.
c. Some models may have a factory installed bypass. Follow the instruction
in paragraph “d” below to adjust the low flow bypass.
d. Adjusting the Low Flow Bypass:
For Manual Low Flow Bypass Valves: Start with the bypass completely
closed and gradually open the valve until the low refrigerant pressure
digital display reading is in the normal operating range for the refrigerant
type used in the chiller.
For Automatic Low Flow Bypass Valves: A “T” handle or adjusting
stem is located on the top of the valve. Turning the “T” handle or
adjusting stem in the clockwise direction puts more pressure on the
valve’s spring reducing bypass flow. Turning the “T” handle or adjusting
stem counter clockwise puts less pressure on the spring and increases
bypass flow. Adjust the “T” handle or adjusting stem until the low
pressure digital display reading is in the normal operating range for the
refrigerant type used in the chiller. If the low pressure digital display
reading is below normal, reduce the pressure on the spring to provide
more bypass.
Typical low flow by-pass loop
Automatic Low Flow
Bypass Valve